99.36: What happens to the inertia of an object when its velocity is doublgveu.tmx q.* jbbc4: xla-)h2ed?

  02.14: An intrinsic property of matter is one tpq5 c-ap4 v*hjhat does not depend on the quantity of matter present. Which of the following properties is NOT anjap4qhc -vp 5* intrinsic property?

  04.16: A 20 kg boulder rests on the surface o3-r, d4+numog 3pexc if the Earth. Assume the Earth has mass rd-c+ u,3ixpegm 43n o$5.98 \times 10^{24} \; kg$ and $g = 10\;m/s^{2}$ . What is the magnitude of the gravitational force that the boulder exerts on the Earth?

  09.12: A 5.0 kg sphere is in free fall near the surface of the Earth. What il3xg -qg.*z hvs the magnitude of thegv.-l*zh3 xqg gravitational force acting on the earth by the sphere? The Earth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an object’s velocm3++gtt 8amrec3*ih j rifc.li bb 6*6ity to increase while its acceleratio.h+3j8ibrmcb + 3*c tlrgi6 *tiae6mfn decreases?

  00.11: A certain particle undergoes erratic motion. At every p 1)w jmjaz*;yhx5wf)toint in its motion, the direction;hf aw*jj)t wy15xz) m of the particle’s momentum is ALWAYS

  17.14: A block is suspended in the air at the end hj :i(erfuv3- of a string held by a person. The person pulls on the string uniformly accelerating the block upward for a short time. During this time, which one of the following choices correctly identif(vjhue3 r:f -iies the Newton’s Third Law pair force to the force of the string on the block?

  07.18: In which one of tqhj1nb 75hbi5:/8hdi9zfidh he following situations is the net force constantly zero on the object h7/51b 5ihiqhzinhd fjd89:b ?

  13.28: An object is in free fall close to the ground.ub. z;.1tv.vwfw fxgut1n t,9 A person intervenes and slows the object uniformly to rest. Which one of the following statements must be true about the magnitude of the acceleration of the object as it is being v; wutffvbt.xz1t9 g.wn ,.1u stopped by the person? The magnitude of the object’s acceleration is a and the magnitude of the acceleration from gravity is g.

  98.03: An object in equilibrium has thr4 jpzrx56bqd38fpi/ 8 np,bv kee forces, F1 of 30 N, F2 of 50 N, and F3 48br npppxvfqdi6 j8 b3 5z/k,of 70 N, acting on it. The magnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a force of 10 newtons cat,2q y g9jfje9n be combine to form a resultant wit9f,yt2gjqe9j h a magnitude of which of the following

  10.06: Which of the following statements is most c;shv;9frd aok :f3*njlosely associated with Newton’s Thirdfdvo*n af3;h 9jrk: ;s Law of Motion?

  95.06: The reaction force does not cancel the aciu fvsk2 lz n/):d7w1ntion force because:

  14.14: A box rests on the floor ofo6vdrux;sf 0vtn+1w / an elevator. The elevator is accelerating upward. Which one of the following choices best represents the Newton’s Third Law pair force to the gravitawufs06 xn1rt/ vd +vo;tional force acting on the box by the Earth?

  15.15: A skydiver falls downward throughd.v j6d/n /na 3txkq6avvc 48j the air with constant speed. Which one of the following choices correctly describes the Newton’s Third Law pair force to the air resistance acting on the skydiver during the f/6dtc.jq46/avajnvv k8d3 n xall?

  06.08: A baseball is thrown byg *ca19g zj-l7uvcd9z a pitcher with a speed of 35 m/s. The batterswings and hits the ball. The magnitg1ujcdz -9c a79z lv*gude of the force that the ball exerts on the bat is always

  11.13: A physics book sits at re0g01erbn6de, v f(xr ost on a table. On top of the book is a calculator, also atn v,xrge0er(10obfd 6 rest. Which one of the following choices is the Newton’s Third Law pair force to the force that the table exerts on the book?

  05.06: The students in a Physics I class were in lab conducting an gme; re;+4s4ndw3blrotz2dw 0)-o ph. xew.c experiment related to Newton's Second Law. The collected data were displayed on the graph at the ri d.pe4c0 ) wgw s;x2we4orlmbdz-t+.e ; on3rhght. From this graph, what conclusions can the students make?

  99.03: If the net force on an object were doubled wb,yue9 m)b pj81l 5vdghile at the same time the mass of the object was halved,then the acceleration of the 9lpj)d1 vg8 5beuymb,object is

  96.15: A car whose mass is 1500 kg is accelerate08z l +lh yuh;rxgfq++oji /7fd uniformly from rest to a speed of 20 m/s ; l8gl7iy+ oj0hrh+/f +zf xuqin 10s. The magnitude of the net force accelerating the car is:

  99.05: A tractor-trailer truck is traveling down the road. The mass oj6x4sq:8wd a19coens rb+;ncf the trailer is 4 times the mass of the tractor. If the tractor accelerates forward, the fooj4cwc; :saq+ x9n d sbn8re61rce that the trailer applies on the tractor is

  99.16: Which of the following principles best expl;nv ),,e j.xrqrarwn f( s1sn3ains why large tractor-trailernaewrnj rv,.s,xn s1;(fq3r) trucks generally accelerate much more slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rink thw vas/ltshd)qv0y380u a wn :1rows a 2 kilogram ball, giving the wu0lh y)asn:3sq0wva81dvt/ ball a velocity of 10.0 m/s. Which statement describes the subsequent motion?

  00.13: An object near the surface of the earth with a a-9 j v2k2rvmbweight of 100 newtons is acavk9m j-v22 brcelerated at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mau;x(3exxlv x ,ss is 1200 kg is accelerated from rest by a constant force of 2400 N. Whatvxx u;x3(e,x l is the speed of the car 8.0 s after beginning?

  98.32: A 3.0-kg block with inir qjr6h.nb-coqt2/(j2d; ohv tial speed 4.0 m/s slides across a rough horizontal floor before cominrjqc2 tod.(ob6n/vr;h-2h q j g to rest. The frictional force acting on the block is 3.0 N. How far does the block slide before coming to rest?

  95.38: A block with initial velocity 4.0 m/s slides gqf,6pje/q51h yl :mi8.0 m across a rough horizontal floor before coming to rest. The coefficient of friction iyf1 le :h5jm/qigp,q6s:

  09.21: A 20.0 kg box rem xf6njg s *i23kc4uxj+ains at rest on a horizontal surface while a person pushes directly to the right on the box with a force of 60N. The coefficient of kinetic friction begjuji 62x4+ kc3*fsxn tween the box and the surface is $\mu_k$ = 0.20. The coefficient of static friction between the box and the surface is $\mu_s$ = 0.60. What is the magnitude of the force of friction acting on the box during the push?

  13.16: A block initially moving at 8 m/s ab k*ohvu oshif)y-8( /ccelerates uniformly to rest on a horizontal surface. The block travels a distance of 12.0 m during the slide. Which one of the following choices best represents the coefficient of kinetic friction between the sur bvh/o (-*k)oh8 fuysiface and the block?

  00.21: A car of mass m slides across a patchio, w5 *y(u3hwyf4ikex i; m3l of ice at a speed v with its brakes locked. It then hits dry pavement and skids to a stop in a distanced. The coef;xi fu3i4 lk* y,(e5iwhy3owmficient of kinetic friction between the tires and the dry road is μ .
If the car had a mass of 2m, it would have skidded a distance of

  00.22: A car of mass m slides across a patch of ice fg36lk bm)f tv6k 13ifku/gr. at a speed v with its brakes locked. It then hitvkm u 1 .3lr)kig36gfk/t6 fbfs dry pavement and skids to a stop in a distanced. The coefficient of kinetic friction between the tires and the dry road is μ .

If the car had a speed of 2v, it would have skidded a distance of

  04.32: he driver of a car makes an tc+0frxs/gej f,*hg- emergency stop by slamming on the car's brakes and skidding to a stop. How far would the car have skidded if it had been travelrg*0sxjt-+fec , gfh/ ing twice as fast?

  99.39: The driver of an automobile must carefullyl 5(frgxmvx5r)m0 5h b-:ixyp control each of the following devices. Which of these devices can cause an acc p(5xvrx0g5 mlfm-) :yhbr5xieleration in a moving car?
(1) the break pedal ( 2) the gas pedal ( 3) the steering wheel

  00.25: The net force on a rocket with a8.nwwaq)krzx sdu j/kzx; ./ gl *9o1o weight of 15000 newtons is 24000 newtons. About how much time is needed to increase the rocket ’ speed from 12 m/s to 36 m/s near .1 w lx8xoo*9 na/wqur .g)jdkkszz; /the surface of the Earth at takeoff?

  07.21: A box slides to the right across a h ti/ *julm5*rm/r 3l.oq 2zgrhorizontal floor. A person called Ted exerts a force T to the right on the box. A person called Mario exerts a force M to the left, which is half as large as the force T. Given that there is friction f and th/mr 5jr q/h 32*mgtlo.l*zirue box accelerates to the right, rank the sizes of these three forces exerted on the box.

  02.27: The diagram below shows threej m5:vk7eskp i483 eyl roller coaster tracks of equal length. Assume that on all tracks the roller coaster cartspelyi:45k 3esv k8j7m start from rest at the same elevation and moves frictionlessly over the tracks to the finish.
If all roller coaster carts start at the positions shown, on which track would the roller coaster cart be traveling the fastest at the finish?

  02.28: The diagram below shows three roller coaster tracks of equal lev+xy ( ga4g4bx h35-xcvqqq5 zngth. Assume that on all tracks the roller coaster carts start from rest at the same elev(+xvqbq5-453 h4qxacg gx zvyation and moves frictionlessly over the tracks to the finish.
If all roller coaster carts start at the positions shown, on which track would the roller coaster cart reach the finish first?

  02.29: Assume the rollercoaster cartrolle7:9f ,rkx9 si ne3m.r alp+rqs frictionlessly along the curved track fr rl,nmx3s.+a 79qpk9refe ir: om point A to point C under the influence of gravity. What would be the direction of the cart's acceleration at point

  02.40: A box with a mass of 50 kg is dragged across the 4rf,lcg joohi2ve iv-+m8m /g o0l,.pfloor by a rope which makes an angle of 300 with the horizontal. Which of the following would be closest to the coefficient of kinetic friction between the f.irlvgo2m 8p,g cm o+i -j /vl,o4he0box and the floor if a 250 newton force on the rope is required to move the crate at a constant speed of 20 m/s as shown in the diagram?

  04.40: A 6.0 kg block initially at rest is pushed agains9d-wm8jr 3ks b4qj t w1(vys5st a wall by a 100 N force as shown. Thecoefficient of kinetic friction is 0.30 while the coefficient of statiwkd39( b54 wssv1-8jyjmsq trc friction is 0.50. What is true of the friction acting on the block after a time of 1 second?

  05.10: A homeowner pushes a lawn mower across a horizontalo6vn+; iraiy; patch of grass with a constant speed bary 6n;+oiiv; y applying a force P. The arrows in the diagram correctly indicate the directions but not necessarily the magnitudes of the various forces on the lawn mower. Which of the following relations among the various force magnitudes, W, f, N, P is CORRECT?

  06.14: A book leans against a crate xu7kms +v1qxs+,a-rb on a table. Neither is moving. Which of the following +rm7 ub vs1xk,s-axq+statements concerning this situation is CORRECT?

  06.15: A crate of toys remains at rest on a sleigh as the sleigh is: pe .1jvc.loi pulled up a hill with an increasing spe: vclj ep1.o.ied. The crate is not fastened down to the sleigh. What force is responsible for the crate’s increase in speedup the hill?